Re: NULLs and sort order - Mailing list pgsql-docs

From Bruce Momjian
Subject Re: NULLs and sort order
Date
Msg-id 200110310451.f9V4pGR15743@candle.pha.pa.us
Whole thread Raw
In response to Re: NULLs and sort order  (Rene Pijlman <rene@lab.applinet.nl>)
List pgsql-docs
Patch applied.  Thanks.

---------------------------------------------------------------------------


> Attached is a small patch for the Reference Manual which adds
> information about nulls and sort order.
>
> This is based on information obtained from Peter Eisentraut and
> Tom Lane on pgsql-hackers.
>
> Please check my English and Docbook markup, as both are a second
> language to me.
>
> On Sun, 09 Sep 2001 16:58:18 +0200, I wrote:
> >I'm forwarding this information from Peter Eisentraut on
> >pgsql-hackers about NULLs and sort order. I couldn't find this
> >in the documentation.
> >
> >I guess it should be in "ORDER BY Clause" of "SELECT" in the
> >Reference Manual, and in the 7.2 release notes.
> >
> >Can someone add this to the documentation?
> >
> >Or am I expected to submit a patch on the Docbook sources?
> >
> >On Sun, 9 Sep 2001 15:25:17 +0200 (CEST), Peter Eisentraut
> ><peter_e@gmx.net> wrote:
> >>Rene Pijlman writes:
> >>> Currently the JDBC driver says:
> >>> - Backend >= 7.2 sorts nulls higher than any other value in a
> >>> domain. In other words: ascending means nulls at the end,
> >>> descending means nulls at the start.
> >>> - Backend < 7.2 puts nulls at the end regardless of sort order.
> >>
> >>That is correct.
> >>
> >>--
> >>Peter Eisentraut   peter_e@gmx.net   http://funkturm.homeip.net/~peter
>
> Regards,
> Ren? Pijlman <rene@lab.applinet.nl>

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